Rice seed production threshing grain-cleaning device

Abstract

The invention discloses a rice seed production threshing grain-cleaning device. The device comprises a threshing machine, a winnower, a cyclone separating cylinder, and a driving device used for driving the threshing machine and the winnower, wherein the outlet of the threshing machine is connected with the inlet of the winnower through a feed mechanism, the feed mechanism comprises a blanking passage and a bottom conveying passage which is located below the threshing machine, the outlet of the threshing machine is communicated with the bottom conveying passage through the blanking passage, one end of the bottom conveying passage is connected with the inlet of the winnower, the other end of the bottom conveying passage is connected to a grain-cleaning mechanism which is used for blowing grains on the bottom conveying passage in the winnower, and the undersurface of the bottom conveying passage is arranged downwards in an inclined mode and in the direction where the winnower conveys the grain. The rice seed production threshing grain-cleaning device has the advantages of being simple and compact in structure, low in manufacturing and production cost, gentle in transportation and clearing, free of damages on the grains, and is capable of achieving a resistance diminishing and antiseizing function and guaranteeing that zero residue outlets in the machine, and the like; meanwhile, the rice seed production threshing grain-cleaning device conforms to lightweight operation of southern paddy field harvesting machinery.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a rice seed production threshing and cleaning device. Background technique [0002] There is a big difference between rice seed production and field production, because seed production contains more varieties, and the yield is low, generally 175kg / mu. In order to ensure the purity of seeds and a higher germination rate, in actual production, It is necessary to ensure that the grains of two different varieties cannot be mixed and the agronomic requirements of low damage rate in the production process. However, the existing combine harvester thresher has the following defects: 1. There are many residues, and it is difficult to clean up the internal residues, which leads to the phenomenon of mixing the next variety of rice; 2. The cleaning process is easy to cause secondary damage to the seeds, which will increase Seed breakage rate, thereby reducing seed germination...

AI Technical Summary

Problems solved by technology

However, the existing combine harvester thresher has the following defects: 1. There are many residues, and it is difficult to clean up the internal residues, which leads to the phenomenon of mixing the next variety of rice; 2. The cleaning process is easy to cause secondary damage to the seeds, which will increase Seed breakage rate, thereby reducing seed germination rate

Therefore, the existing equipment cannot meet the technical requirements of rice seed threshing and clearing grain

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